3 * getans.c -- get an answer from the user and return a string array
5 * This code is Copyright (c) 2002, by the authors of nmh. See the
6 * COPYRIGHT file in the root directory of the nmh distribution for
7 * complete copyright information.
11 #include <h/signals.h>
15 static char ansbuf[BUFSIZ];
16 static jmp_buf sigenv;
21 static RETSIGTYPE intrser (int);
25 getans (char *prompt, struct swit *ansp)
28 SIGNAL_HANDLER istat = NULL;
31 if (!(setjmp (sigenv))) {
32 istat = SIGNAL (SIGINT, intrser);
34 SIGNAL (SIGINT, istat);
39 printf ("%s", prompt);
42 while ((i = getchar ()) != '\n') {
45 if (cp < &ansbuf[sizeof ansbuf - 1])
49 if (ansbuf[0] == '?' || cp == ansbuf) {
50 printf ("Options are:\n");
51 print_sw (ALL, ansp, "", stdout);
54 cpp = brkstring (ansbuf, " ", NULL);
55 switch (smatch (*cpp, ansp)) {
60 printf (" -%s unknown. Hit <CR> for help.\n", *cpp);
63 SIGNAL (SIGINT, istat);
74 * should this be siglongjmp?